Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
f(x) = x^2 + kx + 9 가 중근을 갖도록 k 를 결정하라
f(x) = x^2 + kx + 9 가 중근을 갖도록 k 를 결정하라
Natural Language
Math Input
Extended Keyboard
